Chattogram, Sept. 11 -- Police in a joint operation detained at least 63 foreign nationals for their suspected involvement in online gambling activities in the West Jalalabad area of the city on Thursday night.

The Counter-Terrorism Unit and Khulshi Police Station conducted the operation at an eight-storey building in the area, said Mohammad Faisal Ahmmed, additional commissioner (Crime) of Chattogram Metropolitan Police (CMP).

He, however, declined to provide details of the operation.

According to preliminary police information, the detainees included 35 nationals from Laos, 21 from Pakistan, five from China, one each from Nepal and Vietnam.

Of the 63 detainees, 41 are men, 21 women and one is a child.

Police said 131 mobile phones ...